Re: [PATCH 05/14] uaccess: add generic __{get,put}_kernel_nofault
From: Al Viro <viro@zeniv.linux.org.uk>
Date: 2022-02-15 00:32:08
Also in:
linux-alpha, linux-api, linux-arch, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
On Mon, Feb 14, 2022 at 05:34:43PM +0100, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@arndb.de>
All architectures that don't provide __{get,put}_kernel_nofault() yet
can implement this on top of __{get,put}_user.
Add a generic version that lets everything use the normal
copy_{from,to}_kernel_nofault() code based on these, removing the last
use of get_fs()/set_fs() from architecture-independent code.I'd put the list of those architectures (AFAICS, that's alpha, ia64, microblaze, nds32, nios2, openrisc, sh, sparc32, xtensa) into commit message - it's not that hard to find out, but... And AFAICS, you've missed nios2 - see #define __put_user(x, ptr) put_user(x, ptr) in there. nds32 oddities are dealt with earlier in the series, this one is not...